*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
h2{
    font-size: 20px;
    text-align: center;
}
.width_middle{
    width: 80%;
    min-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}
header {
    display: flex;
    border-bottom: 2px #7abaff solid;
}
ul{
    list-style: none;
    margin-block-end: 0;
    margin-block-start:0;
    padding-inline-start:0;
}
header .search_div{
    width: 59%;
}
.user_entrance,h1{
    width: 29%;
}
nav{
    margin-bottom: 20px;
}
.user_entrance a{
    font-size: 18px;
    text-decoration: none;
    color:#00acee;
}
.search_app_btn{
    background-color: #7abaff;
    color: white;
    font-size: 20px;
    padding: 8px 15px;
    cursor: pointer;
    border: none;
}
.search_app_btn:hover{background-color: #00acee;}
.search_app_input{
    width: 350px;
    font-size: 20px;
    line-height: 40px;
    padding: 0 15px;
    border: 1px solid #00acee;
}
.user_img{
    height: 55px;
}
.category_list{
	display:flex;
    flex-wrap: wrap;
}
.category_list li{
    font-size:16px;
    padding:10px 20px;
    cursor: pointer;
}
.category_list li a{
    text-decoration:none;
    color:black;
}
.category_list li.active a{
    color:white;
}
.category_list li:hover{
    background-color:#00acee;
    color:white;
}
.category_list li.active{
	background-color:#00acee;
	color:white;
}
main{
    display: flex;
    justify-content: space-between;
}
.app_list{
    display: flex;
    width: 100%;
    align-content: flex-start;
    border: 1px solid red;
    flex-wrap: wrap;
}
.app_item{
    width: 10%;
    cursor: pointer;
    margin: 15px;
}
.app_item img{
    width: 100%;
}
.info_visible .app_list{
    width: 33%;
}
.info_visible .app_item{
    width: 28%;
    margin: 10;
}
.app_info{
    display: none;
    width: 65%;
}
.app_comment{
    display: none;
}
.tab_changed .app_comment{
    display: block;
}
.info_visible .app_info{
    display: block;
    border: 1px solid #00acee;
    padding: 10px;
    position: relative;
}
.app_lab{
    display: flex;
}
.app_info .app_logo{
    min-width: 100px;
}
.user_avatar{
    width: 50px;
}
.app_lab{
    display: flex;
    width: 100%;
    margin: 20px 0px;
    height: 40px;
    border: 1px solid #00acee;
}
.app_lab div{
    text-align: center;
    width: 50%;
    cursor: pointer;
    height: 100%;
    line-height: 40px;
    font-size: 18px;
}
.app_lab .tab_active{
    background-color: #00acee;
    color: white;
}
.app_shot_img {
    display: flex;
    width: fit-content;
    margin-top: 20px;
    margin-bottom: 20px;
}
.app_shot_img li{
    width: 144px;
    height: 240px;
    display: flex;
    align-items: center;
    flex-direction: column;
    border: 1px solid gainsboro;
    margin: 0 10px;
}
.tab_changed .app_comment{
    display: block;
}
.tab_changed .app_detail{
    display: none;
}